SketchBook

var time;

function setup() {
createCanvas(windowWidth,
windowHeight);
noFill();

time = 0.7;
}

function draw() {
background(250, 220, 225);

var num = 80;
for (var i = 0; i < num; i = i + 1) {
var R = i * (172/ num);
var G = 227 - i * (6/ num);
var B = 160 - i * (169 / num);
stroke(R, G, B);

var x = windowWidth / 2;
var y = windowHeight /2;
var spX = 0.34 * i * windowWidth / num;
var spY = 0.2 * i * windowHeight / num;
// var dia = spX;
var dia = spX * sin(0.1 * i + time);
stamp(x, y, spX, spY, dia);
}

time = time + 0.025;
}

function stamp(x, y, spaceX, spaceY, diameter) {
ellipse(x - spaceX, y - spaceY, diameter);
ellipse(x - spaceX, y + spaceY, diameter);
ellipse(x + spaceX, y - spaceY, diameter);
ellipse(x + spaceX, y + spaceY, diameter);
}